I'm building a scale using a nRF21540-DK and a HX711 amplifier for load sensors using nRF Connect SKD version 2.3.0 zephyr.

[HenriqueT22]

I am simply using this github page as an example and . One thing, i connected the DOUT pin of HX711 to the P0.26 of nrf21540-dk and the SCK of HX711 amplifier to the P0.27 pin of the nrf21540-dk.

I've followed every step that they said I needed to do but it is full of error i don't know why. Please i need help and i even pay if you help me. Zoom meeting discussion is much apreciated if you can.

My project is named "hello_world". I built on pristine and this is the errors i'm getting:  

Building hello_world
C:\Windows\system32\cmd.exe /d /s /c "west build --build-dir c:\Nrf_Project\hello_world\build c:\Nrf_Project\hello_world --pristine --board nrf21540dk_nrf52840 -- -DNCS_TOOLCHAIN_VERSION:STRING="NONE" -DCONF_FILE:STRING="c:/Nrf_Project/hello_world/prj.conf""

-- west build: generating a build system
Loading Zephyr default modules (Zephyr base).
-- Application: C:/Nrf_Project/hello_world
-- Found Python3: C:/ncs/toolchains/v2.3.0/opt/bin/python.exe (found suitable exact version "3.8.2") found components: Interpreter
-- Cache files will be written to: C:/ncs/v2.3.0/zephyr/.cache
-- Zephyr version: 3.2.99 (C:/ncs/v2.3.0/zephyr)
-- Found west (found suitable version "0.14.0", minimum required is "0.7.1")
-- Board: nrf21540dk_nrf52840
-- Found host-tools: zephyr 0.15.2 (C:/ncs/toolchains/v2.3.0/opt/zephyr-sdk)
-- Found toolchain: zephyr 0.15.2 (C:/ncs/toolchains/v2.3.0/opt/zephyr-sdk)
-- Found Dtc: C:/ncs/toolchains/v2.3.0/opt/bin/dtc.exe (found suitable version "1.4.7", minimum required is "1.4.6")
-- Found BOARD.dts: C:/ncs/v2.3.0/zephyr/boards/arm/nrf21540dk_nrf52840/nrf21540dk_nrf52840.dts
'label' is marked as deprecated in 'properties:' in C:/Nrf_Project/hello_world/dts/bindings\sensor\avia,hx711.yaml for node /hx711.
-- Generated zephyr.dts: C:/Nrf_Project/hello_world/build/zephyr/zephyr.dts
-- Generated devicetree_generated.h: C:/Nrf_Project/hello_world/build/zephyr/include/generated/devicetree_generated.h
-- Including generated dts.cmake file: C:/Nrf_Project/hello_world/build/zephyr/dts.cmake
Parsing C:/Nrf_Project/hello_world/Kconfig
Loaded configuration 'C:/ncs/v2.3.0/zephyr/boards/arm/nrf21540dk_nrf52840/nrf21540dk_nrf52840_defconfig'
Merged configuration 'c:/Nrf_Project/hello_world/prj.conf'
Traceback (most recent call last):
File "C:/ncs/v2.3.0/zephyr/scripts/kconfig/kconfig.py", line 292, in <module>
main()
File "C:/ncs/v2.3.0/zephyr/scripts/kconfig/kconfig.py", line 65, in main
if kconf.syms['WARN_DEPRECATED'].tri_value == 2:
KeyError: 'WARN_DEPRECATED'
CMake Error at C:/ncs/v2.3.0/zephyr/cmake/modules/kconfig.cmake:328 (message):
command failed with return code: 1
Call Stack (most recent call first):
C:/ncs/v2.3.0/nrf/cmake/modules/kconfig.cmake:29 (include)
C:/ncs/v2.3.0/zephyr/cmake/modules/zephyr_default.cmake:108 (include)
C:/ncs/v2.3.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include)
C:/ncs/v2.3.0/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boilerplate)
CMakeLists.txt:5 (find_package)

-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: 'c:\ncs\toolchains\v2.3.0\opt\bin\cmake.EXE' '-DWEST_PYTHON=c:\ncs\toolchains\v2.3.0\opt\bin\python.exe' '-Bc:\Nrf_Project\hello_world\build' -GNinja -DBOARD=nrf21540dk_nrf52840 -DNCS_TOOLCHAIN_VERSION:STRING=NONE -DCONF_FILE:STRING=c:/Nrf_Project/hello_world/prj.conf '-Sc:\Nrf_Project\hello_world'

[HenriqueT22]

THIS IS THE GITHUB PAGE: https://github.com/nobodyguy/HX711_zephyr_driver

[Hieu]

Hi HenriqueT22,

'label' is marked as deprecated in 'properties:' in C:/Nrf_Project/hello_world/dts/bindings\sensor\avia,hx711.yaml for node /hx711.

The reason for this build failure is most likely the deprecation of the label property itself in Zephyr project.

Perhaps you are using the example code from the HX711 Driver project README?

If so, please remove the line setting the label property.

/{
	hx711 {
		compatible = "avia,hx711";
		status = "okay";
		label = "HX711";    // <<<<<<<<<<< Remove this
		dout-gpios = <&gpio0 26 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP) >;
		sck-gpios = <&gpio0 27 GPIO_ACTIVE_HIGH>;
		rate-gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
	};
};

Please see this also discussed in the GitHub page of the HX711 Driver you are using: https://github.com/nobodyguy/HX711_zephyr_driver/issues/1

Hieu

[HenriqueT22]

I still don't know how to put this working. Always full of errors and I'm very new to this software, can you help? I really need this... like a zoom meeting or something? 

[Hieu]

Sorry, but as Nordic's Application Engineers, we don't accept meeting request over DevZone.

Of course, other forums users might accept your request. But for now, looks like it's just us.

If you provide details of your specific difficulty, I can try to help you overcome it.

For reference, you could also look at the Out of Tree Driver sample: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/2.4.0/zephyr/samples/application_development/out_of_tree_driver/README.html.

[HenriqueT22]

What other forums might accept my request? I want to talk to a real Nordic Semiconductor engineer please. Can you provide some engineers that can help me?